Swimming in Belfast in october 2025: Average sea temperature in october and tide times in october 2025
Average sea temperature in Belfast in october 2025.
In october, according to seasonal norms, the sea temperature in Belfast is:
Minimum: 55°F
Average: 56°F
Maximum: 58°F
Other useful seasonal weather averages in october:
- Outside temperature: 49°F to 56°F
- Most common weather: "Cloudy"
- The wind blows at 4.4mph
- It rains a total of 5.2in, over 8 day(s).
Should we swim in Belfast in october?
No... The water temperature in Belfast in october is freezing
You won't be able to swim in Belfast in october! The water temperature is freezing, reaching as low as 55°F (and only 58°F at best)! Our advice: if you are going to Belfast this month, plan to sightsee and forget the beach!
Note also that in october, the climate is tolerable with an average outside temperature of 52°F, 5.2in of precipitation (over 8 days) and 91.07 % humidity.
Water and normal seasonal temperatures in Belfast in october
| October | |||
| Average sea temperature | 56°F | ||
| Minimum sea temperature | 55°F | ||
| Maximum sea temperature | 58°F | ||
| Average outside temperature | 52°F | ||
| Maximum outside temperature | 56°F | ||
| Minimum outside temperature | 49°F | ||
| Wind speed | 14.3mph | ||
| Wind temperature | 45°F | ||
| Precipitation | 5.2in | ||
| Number of days of rain | 8 jour(s) (26%) | ||
| Humidity | 92% | ||
| Visibility in kilometers | 8.77km | ||
| Cloud cover | 61% | ||
| Our opinion | freezing swimming |
Chart of the tides in october 2025
Tide times in october 2025 in Belfast
Swim elsewhere in Northern Ireland in october
| City | Average T° | Min. T° | Max. T° | Our opinion | Derry (Londonderry) in october | 56°F | 58°F | freezing swimming | Portrush in october | 56°F | 58°F | freezing swimming | Portstewart in october | 56°F | 58°F | freezing swimming |
Swim in Northern Ireland in october: sea temperature by city